Moderátor: Moderátoři AVMania.cz
wget http://moodeaudio.org/downloads/update-r40b9.zip
unzip update-r40b9.zip
cat ./update/install.sh
wget http://www.alkatex.cz/moosimbu.sh && chmod +x ./moosimbu.sh; sudo ./moosimbu.sh -u
cat ~/mosbuild.log | grep 'COMPONENT\|STEP\| Compile \| END\| Error'
pi@moode:~ $ cat ~/mosbuild.log | grep 'COMPONENT\|STEP\| Compile \| END\| Error'
// STEP 3A - Install core packages
// STEP 3B - Install core packages
// STEP 4 - Install enhanced networking
** Compile bluez-alsa
// STEP 5 - Install Rotary encoder driver
** Compile WiringPi
** Compile rotary encoder driver
// STEP 6 - Compile and install MPD
// STEP 7 - Create moOde runtime environment
// STEP 8 - Install moOde sources and configs
// STEP 9 - Alsaequal
// STEP 10 - Optionally squash /var/www
// STEP 11 - Optionally, install latest Linux Kernel
// STEP 12 - Launch and configure moOde!
// STEP 13 - Final prep for image
// COMPONENT 1 - MiniDLNA
// COMPONENT 2 - Auto-shuffle
// COMPONENT 3 - MPD Audio Scrobbler
// COMPONENT 4 - Shairport-sync
// COMPONENT 5 - Squeezelite
// COMPONENT 6 - Upmpdcli
** Compile Libupnp jfd5
** Compile Libupnpp
** Compile Upmpdcli
** Compile Upexplorer
// COMPONENT 7 - Optionally install gmusicapi
// COMPONENT 8 - Local UI display
// COMPONENT 9 - Allo Piano 2.1 Firmware
// END
1. Download the Image Builder version 2.2
cd /home/pi
sudo wget -q http://moodeaudio.org/downloads/mos/mosbuild.sh -O /home/pi/mosbuild.sh
sudo chmod +x /home/pi/mosbuild.sh
2. Start the Image Builder
sudo ./mosbuild.sh
begin
prog = irexec
button = KEY_VOLUMEUP
config = mpc volume +5
repeat = 4
end
begin
prog = irexec
button = KEY_VOLUMEDOWN
config = mpc volume -5
repeat = 4
end
So, now i did some more tests and i am trying to put all information about sound quality tweaking in one place.
1. This is a must - wifi off, bt off, hdmi off, volume control off, eq off, resampling off.
2. added in /boot/config.txt :
force_turbo=1
avoid_pwm_pll=1
arm_freq=333
over_voltage=-7
core_freq=166
h264_freq=166
isp_freq=166
v3d_freq=166
gpu_freq=166
sdram_freq=166
sdram_schmoo=0x021e882c
over_voltage_sdram_p=5
over_voltage_sdram_i=3
over_voltage_sdram_c=-13
gpu_mem=16
3. added in /boot/cmdline.txt:
dwc_otg.microframe_schedule=0 dle=0 dwc_otg.nak_holdoff_enable=1 dwc_otg.fiq_fix_enable=0 dwc_otg.lpm_enable=0 smsc95xx.turbo_mode=N isolcpus=2,3
isolcpus is isolating two cpus only for mpd and works only on quadcore pi's
4. changed options in /lib/systemd/system/mpd.service, original value is uncommented:
#CPUSchedulingPolicy=other
CPUSchedulingPolicy=fifo
tried different, for me fifo sounds best.
#CPUSchedulingPriority=43
CPUSchedulingPriority=70
tried higher settings, but 70 is a good compromise
#Nice=-10
Nice=-15
also tried higher values, but -15 is a good compromise
#ExecStart=/usr/local/bin/mpd --no-daemon $MPDCONF
ExecStart=/usr/bin/taskset -c 2,3 /usr/local/bin/mpd --no-daemon $MPDCONF
this one is starting mpd using isolated cpus and no other processes are using those cpus.
My streaming is sounding as good, as never before and now it is clear for me, that underclocking cpus and ram is really great.
Thanks to anybody, who found out, how to "audiophilise" and "de-digitituslise" moOde
Maybe some of those tweaks (which are not making system unstable) can be implemented in moOde?
_daRK píše:Neskúšal som to zapojiť do samostatného napájania usb-c, ktoré Allo BOSS DAC 1.2 má, rozdiel bol už keď som to pichol priamo do raspberry.
jbajci píše:http://rpishop.cz/zdroje-napajeni-baterie/526-5v3a-dc-zdroj-s-kulatym-konektorem.html
Podle obrázku je totožný jako ten od Allo, můžeš si to ověřit u prodejce
Pixxel píše:jbajci:
https://www.alza.cz/hama-jack-zasuvka-3 ... 638122.htm
Z mého piana leze myslím 2,1Vrms a celkem pěkně to chodí s mými HE400i.
jbajci píše:Jaký máš NAS server? U Synology jsem měl taky problém než jsem přišel na řešení.
Zvuková karta Allo Boss DAC v1.2 vyžaduje malou úpravu konfigurace:
otevřete soubor /boot/config.txt
na konec souboru vložte na nový řádek: dtoverlay=allo-boss-dac-pcm512x-audio
upravený soubor uložte, nasaďte zvukovou kartu na Raspberry Pi a připojte napájení
v nastavení systému přepněte zvukový výstup z HDMI na DAC